Synthesis of sub-10 nm copper sulphide rods as high-performance anode for long-cycle life Li-ion batteries
Synthesis of sub-10 nm copper sulphide rods as high-performance anode for long-cycle life Li-ion batteries
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DOI：
10.1016/j.jpowsour.2015.12.048
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发表时间：
2016-02
影响因子：
9.2
通讯作者：
Mingjiong Zhou;Na Peng;Z. Liu;Xiaobing Yun;Huiqiu He;Yonggao Xia;Zhaoping Liu;S. Okada
中科院分区：
文献类型：
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作者：
Mingjiong Zhou;Na Peng;Z. Liu;Xiaobing Yun;Huiqiu He;Yonggao Xia;Zhaoping Liu;S. Okada
尺寸小于 10 nm 的硫化铜 (CuS) 纳米棒是通过简单的溶胶-凝胶方法合成的，无需进行后热处理。通过 X 射线衍射、透射电子显微镜和能量色散 X 射线光谱表征所制备的 CuS 纳米棒为六方蓝铜矿 CuS。所制备的 CuS 纳米棒用作负极材料，具有高可逆容量和高达 250 次循环的优异循环稳定性，以及高库仑效率。 CuS纳米棒的独特结构应该是其优异电化学性能的原因。
Copper sulfide (CuS) nanorods with the size of sub-10 nm are synthesized via a facile sol–gel method without post–thermal treatment. The as-prepared CuS nanorods are characterized by X-ray diffraction, transmission electron microscope, and energy dispersive X-ray spectroscopy as hexagonal covellite CuS. The as-prepared CuS nanorods utilized as anode material exhibit a high reversible capacity and excellent cycling stability up to 250 cycles, as well as high Coulombic efficiency. The unique structure of the CuS nanorods should be responsible for their excellent electrochemical performance.